SINGLE LEVER LELAND® PULL DOWN KITCHEN FAUCETS

Models/Modelos/Modèles: 978-DST, 978-SD-DST & 9978-DST Series/Series/Seria

Certifications: ASME A112.18.1 / CSA B125.1, UPC®

Please write purchased model number here.

Product Overview & Warranty

This Delta faucet features a pull-down spout with an integrated backflow protection system, tested for compliance with ASME A112.18.3 and ASME A112.18.1 / CSA B125.1. It includes two certified check valves operating independently as non-serviceable parts of the spray assembly.

WARNING: THIS FAUCET IS NOT TO BE USED WITH PORTABLE DISHWASHERS!

Lifetime Faucet and Finish Limited Warranty

Delta Faucet Company warrants all parts and finishes to the original consumer purchaser to be free from defects in material and workmanship for as long as they own their home. Delta recommends using a professional plumber for installation and repair.

Delta will replace, FREE OF CHARGE, any part or finish that proves defective under normal installation, use, and service during the warranty period. Replacement parts can be obtained by calling 1-800-345-DELTA (in the U.S. and Canada) or by writing to:

This warranty covers replacement of defective parts and finishes only. Labor charges and/or damage incurred during installation, repair, or replacement, as well as any other kind of loss or damages, are excluded. Proof of purchase (original sales receipt) is required for all warranty claims.

This is the exclusive warranty by Delta Faucet Company. It excludes all industrial, commercial, and business usage, which are covered by a five-year limited warranty from the date of purchase. This warranty applies to Delta faucets manufactured after January 1, 1995.

Some states/provinces do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Any damage resulting from misuse, abuse, neglect, or use of non-genuine Delta replacement parts WILL VOID THE WARRANTY.

This warranty grants specific legal rights, and you may have other rights that vary by state/province. It applies only to Delta faucets installed in the United States of America, Canada, and Mexico.

Installation Instructions

For easy installation of your Delta faucet, you will need:

Spout Installation

Note: Faucets are designed for a maximum countertop thickness of 2 1/4".

*If installing on a Stainless Steel or thin sink, use the included RP37490 Stabilization Plate.

Action: Shut off water supplies.

1. Thread screws (1) approximately 4 complete turns into mounting nut (2).

2. Position spout assembly on sink, in the center of the mounting hole. Ensure gasket (3) is properly aligned in the base cavity.

Option: If the surface is uneven, use silicone sealant under the gasket.

3. Secure spout with mounting nut (2) and washer (4).

4. After hand-tightening the mounting nut, tighten screws (1) until snug.

Diagram shows spout assembly components and installation steps.

Valve Assembly Installation

1. Slide gasket (1) up over the valve assembly tubes and place it in the groove in the base (2).

2. Feed the tubes down through the sink hole, ensuring the gasket is properly seated.

3. Place the valve assembly (3) in the center of the mounting hole as shown.

4. Secure the valve assembly to the sink with mounting bracket (4) and nut (5) using the provided wrench (6).

Diagram shows valve assembly components and installation steps.

Hose Installation

Part A:

1. Insert hose guide (1) into hose end (2).

2. Pass hose (2) up through the spout tip (3). This may require several attempts. Let the hose protrude from the spout to prevent it from being pulled in, or briefly attach the sprayer.

3. Remove hose guide (1).

4. Slide hose weight (4) over the end of hose (2).

Part B:

1. Push hose end (1) onto hose (2).

2. Attach clip (3) over the hoses as shown.

3. Pull down moderately to ensure the connection is secure.

Diagrams illustrate hose guide insertion, hose passing through spout, hose weight placement, and hose connection with clip.

Soap Dispenser Installation

1. Remove nut and gasket (1).

2. Insert dispenser body (2) and gasket (3) through the selected hole in the sink. Ensure the gasket (3) is properly seated in the base.

3. Secure the body to the sink with nut and gasket (1).

4. From under the sink, screw the bottle (4) onto the body assembly shank.

5. Insert the pump and head (5) into the body (2).

Note for Filling: Lift the head and pump assembly out of the bottle and pour no more than 8 oz. into the bottle. Do not remove the bottle each time, as this weakens the neck. Periodically pull the pump and head assembly out to soak and pump warm water through to remove soap build-up.

Diagram shows soap dispenser components and installation steps.

Water Line Connections

General Connections:

1. Ensure all fittings and end connections are free of debris.

2. Faucet fittings (1) are 3/8" compression, with red for hot and blue for cold.

3. Loop tubing (2) if it is too long. Recommended minimum bend diameter is 8".

4. Secure metal nut (3) on faucet tube to supply valve connection (4). Hand tighten, then tighten one additional turn with a wrench. DO NOT OVERTIGHTEN. Repeat for the other tube.

WARNING: Do not use pipe dope or other sealants on water line connections.

Diagram shows water line connection points.

Custom Fit Connections (PEX Tubing)

If you determine the PEX supply tubing is too long and must be shorter for an acceptable installation, read instructions and plan ahead. The installer accepts responsibility for cutting the tubing to allow a leak-free joint. Delta is not responsible for tubing cut too short or in a way that prevents a leak-free joint.

For custom fit installations, use RP50952 sleeves and nuts included on supply lines. The tube cut must be straight. Refer to RP50952 instructions for plastic sleeve installation.

1. Secure metal nut (1) on faucet tube to supply valve connection (2). Hand tighten, then tighten an additional 2 turns with a wrench. DO NOT OVERTIGHTEN. Repeat for the other tube.

Diagram shows custom fit connection with PEX tubing and sleeve.

Potential Problems and Remedies

WARNING: Do not use pipe dope or other sealants on water line connections.

Plastic Sleeve Installation Instructions

1. Identify the desired length of tube (1). Leave 1" - 2" of extra length for easier installation. Ensure the cut is straight and burr-free.

2. Slide nut (2) and plastic sleeve (3) onto the cut tube. Ensure the sleeve is oriented as shown.

3. Insert the tube into the outlet fitting (4). The tube should touch the bottom of the hole inside the fitting.

4. Slide the plastic sleeve down the tube until it engages the top of the fitting. NOTICE: Failure to use the plastic sleeve in the correct orientation may result in disconnection and possible water damage.

5. Slide the nut over the plastic sleeve. With a wrench, tighten the nut 2 turns past finger tight.

Diagram shows correct and incorrect plastic sleeve installation, emphasizing proper orientation and cut.

Handle Installation and Limit Stop

1. Thread sleeve (1) over bonnet (2) and hand tighten.

2. Place handle (3) on stem (4) and secure with set screw (5).

3. Install button (6) into the set screw hole.

Diagram shows handle and set screw installation.

Setting The Handle Limit Stop (Optional)

This faucet has an integrated handle limit stop with two positions:

To change positions:

  1. Remove the handle.
  2. Move the valve stem to the all-cold position (water on).
  3. Change the position of the handle limit stop.
  4. Turn off the water.
  5. Reinstall the handle.
Diagram illustrates the two handle limit stop positions.

Hose Assembly Flushing & Handle Operation

1. Pull the hose assembly (1) out of the spout, holding the end of the hose down into the sink.

2. Turn faucet handle (2) to the full on mixed position.

3. Turn on hot and cold water supplies (3) and flush water lines for one minute.

IMPORTANT: This flushes away any debris that could cause damage to internal parts.

4. Hand tighten the hose nut (4) into the sprayer assembly (5).

5. Check all connections at the indicated arrows for leaks. Re-tighten if necessary, but do not overtighten.

Diagram shows hose assembly being pulled out and water flushing.

Maintenance

If faucet exhibits very low flow:

If faucet leaks from under the handle:

If faucet leaks from spout outlet:

WARNING: Failure to securely tighten bonnet nut with a wrench could result in water damage.

A small amount of water may run out the spout or drip for a very short period after the faucet is shut off. This is a natural occurrence caused by the long flexible hose.

Do not attempt to disassemble cartridge (3). There are no repairable parts inside.

Diagrams illustrate maintenance points like aerator, cartridge, and bonnet nut.

Cleaning and Care

Care should be given to the cleaning of this product. Although its finish is extremely durable, it can be damaged by harsh abrasives or polish.

To clean, simply wipe gently with a damp cloth and blot dry with a soft towel.

Parts List

RP54537

Spout Assembly with Magnet

Ensamble del Tubo de Salida con Imán

RP51480

Sprayer Assembly

Ensamble de rociador

RP50815

Aerator

Aereador

RP52116

Wrench

Llave

RP40650

Set Screw

Tornillo de Ajuste

RP51496

Red/Blue Button

Botón rojo/azul

RP40520

Spout Ring, Friction Washer & Clip

Aro para el Surtidor, Arandela de Fricción y Clip

RP50587

Valve Assembly

Ensamble de la válvula

RP46748

Handle w/Button & Set Screw

Manija con botón y tornillo de presión

RP51481A

Sleeve Assembly

Manchon

RP6052

Gasket

Empaque

RP51503

Bonnet

Bonete

RP50788

Spout Gasket

Empaque

RP50785

Mounting Hardware

Herramientas para la Instalación

RP51243

Gaskets

Empaques

RP13938

O-Ring

Anillo "O"

RP50952

Cut -To -Fit Hose Ferrules

Casquillos cortados a la medida para la manguera

RP47029

Bracket

Abrazadera

RP47030

Nut & Wrench

Tuerca y Llave

RP50813

Soap Dispenser

Dispensador de jabón.

RP49149

Steel Weight Assembly

Ensamble de la Pesa de Acero

RP37490

Stabilization Plate

Chapa Estabilizadora

RP50390

Hose Assembly & Clip

Ensamble de la Manguera y Presilla

Diagram shows an exploded view of all faucet parts with corresponding part numbers.

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